The video of a Phoenix cop body slamming a 15-year-old girl has made international headlines, proving once again the importance of citizen videography.

Patrick Larrison claimed in his arrest report that the girl had somehow threatened him.

But the video contradicts that claim.

The girl was also charged with aggravated assault on a school employee, but that incident allegedly happened off video.

The incident took place on January, but the video was not uploaded to Youtube until March. And it was not discovered by police until last week when an officer apparently stumbled upon it and reported it to superiors.

The girl was allegedly drunk and handing out alcohol to fellow students. Then she got into a physical altercation with her mother.

She is walking away and appears to be oblivious to Larrison until the last second when he comes running behind and her and body slamming her. He appears to punch her in the back of the head.

Now he is under investigation and may face criminal charges.